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<title>Table 3: Immediate Subattributes of `interface'</title>
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&nbsp;<b>Table 3:  Immediate Subattributes of <code>interface</code></b><br>
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<b>Attribute</b>
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<b>Mandatory</b>
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<b>Description</b>
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<code>id</code>
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YES
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An Integer value which must be set to the value of the <i>id</i> attribute of the according
NIC configured in <br>
<i>Net</i> [ <br>
<i>&nbsp;&nbsp;&nbsp;router</i> [ <br>
<i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;interface</i> [ <br>
<i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;id</i>.... <br>
OSPFv2 gets its ip address and mask from this NIC, so be careful when setting this value!
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<code>network</code>
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YES
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Here you specify the OSPFv2 interface type. It describes the technology of the link layer 
attached to this interface. OSPFv2 version 0.2.2 supports only point-to-point network types,
therefore you should set the value to <i>ptp</i>. Other possible values are <i>broadcast</i>,
<i>nbma</i> (non-broadcast multi access), <i>ptm</i> (point-to-multipoint) and <i>vlink</i>
(virtual link) but they are not supported or they don't work accurately.
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<code>cost</code>
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NO
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A cost is associated with the output side of each router interface. The lower the cost, 
the more likely the interface is to be used to forward data traffic. It <b>must</b> be
greater than 0! The <b>default value</b> for this attribute is <b>1</b>.
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<code>priority</code>
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NO
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The <i>Router Priority</i>. An integer value of 0 or greater. When two routers attached 
to a broadcast network both attempt to become <i>Designated Router</i>, the one with the 
highest <i>Router Priority</i> takes precedence. A router whose <i>Router Priority</i> is 
set to 0 is ineligible to become <i>Designated Router</i> on the attached network. SSFNet 
IP does not support broadcast, so this value has no preference. The <b>default value</b>
for this attribute is <b>0</b>.
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<code>transmit-delay</code>
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NO
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The estimated number of seconds it takes to transmit a <i>Link State Update Packet</i> over 
this interface. LSAs contained in a <i>Link State Update Packet</i> will have their age
incremented by this amount before transmission. This value should take into account
transmission and propagation delay; it <b>must</b> be greater than 0! The <b>default 
value</b> for this attribute is <b>1</b>.
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<code>hello-interval</code>
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NO
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The length of the interval, in seconds, between two consecutive Hello Packets that OSPFv2 
sends out this interface.
The <b>default value</b> for this attribute is <b>10</b>.
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<code>dead-interval</code>
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NO
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The number of seconds before the router turns down the adjacency to a neighbor on this interface
when it stops hearing the neighbor's <i>Hello Packets</i>. This should be a multiple of
<i>hello-interval</i>. The <b>default value</b> for this attribute is <b>40</b>.
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<code>retransmit-interval</code>
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NO
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The number of seconds between LSA retransmissions, for adjacencies belonging to this interface.
Also used when retransmitting <i>Database Description</i> and <i>Link State Request</i> packets.
The <b>default value</b> for this attribute is <b>5</b>.
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